Materials Planner (Onsite)
RTXDate Posted: 2026-09-28

 Country: United States of America

 Location: US-SC-SIMPSONVILLE-1001 ~ 1001 Old Stage Rd ~ OLD STAGE

 Position Role Type: Onsite

 U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

 Security Clearance Type: None/Not Required

 Security Clearance Status: Not Required At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. Materials Planner – Simpsonville, SC (On-Site) The Materials Planner is responsible for ensuring inventory accuracy, forecast alignment, and materials availability across multiple Collins Aerospace sites. This role drives visibility, governance, and performance of inventory by collaborating with Operations, Supply Chain, SIOP/SIOE, Finance, Program Management, and Site Leadership. The position requires strong analytical skills, process discipline, and the ability to proactively identify risks and enable data‑driven decision‑making. What You Will Do Inventory & Materials Planning Enable visibility to the impact of short‑ and long‑term demand trends on materials and inventory; maintain records of inputs and rationale for changes. Review and recommend enhancements to Effective Material Planning (EMP) parameters and inventory entitlement policies. Maintain material policies (EMP/IE reviews) and drive optimal inventory levels for assigned commodities and sites. Conduct ABC strata reviews to ensure correct part classification and appropriate planning strategies. Forecasting & Master Data Support Provide materials planning parameter inputs to Master Data Planners (MRP types, MOQs, lot sizes, etc.). Support inventory forecasting, including input/output modeling and management of reason codes for inventory deviations (trapped, stranded, WIP, FG, raw material classifications). Reporting, Analytics & Governance Track metrics, manage entitlement levels, and present inventory rollups with executive insights. Support excess and obsolete material reviews, analysis, and submission. Drive inventory variance reporting and lead problem‑solving activities. Cross‑Functional Collaboration Partner with Supply Chain, Operations, SIOP/SIOE, Finance, Program Management, and site teams to meet inventory targets and ensure materials readiness. Support SIOP processes including supply reviews, pre‑executive reviews, site S&OE, and monthly tiered meetings. Drive escalation and scenario planning for disruptive events (e.g., supplier shortages, market disruptions, customer‑driven changes, strikes). Continuous Improvement Assist in process creation/modifications to improve inventory control, planning capabilities, and forecast accuracy. Eliminate process gaps, streamline cross‑functional handoffs, shorten cycle times, and improve overall inventory performance. Qualifications You Must Have Typically requires a University Degree and minimum 2 years of prior relevant experience or an Advanced Degree in a related field Proficiency in ERP/MRP systems. Strong analytical skills and ability to interpret complex data sets. Ability to work on‑site in Simpsonville, SC and collaborate with multi…